1 /*- 2 * SPDX-License-Identifier: (BSD-1-Clause AND BSD-4-Clause) 3 * 4 * Copyright (c) 2011 Rick van der Zwet <info@rickvanderzwet.nl> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 /*- 20 * Copyright (c) 2008 Johann Christian Rode <jcrode@gmx.net> 21 * 22 * Permission to use, copy, modify, and distribute this software for any 23 * purpose with or without fee is hereby granted, provided that the above 24 * copyright notice and this permission notice appear in all copies. 25 * 26 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 27 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 28 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 29 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 30 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 31 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 32 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 33 */ 34 35 /*- 36 * Copyright (c) 2005, 2006, 2007 Jonathan Gray <jsg@openbsd.org> 37 * 38 * Permission to use, copy, modify, and distribute this software for any 39 * purpose with or without fee is hereby granted, provided that the above 40 * copyright notice and this permission notice appear in all copies. 41 * 42 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 43 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 44 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 45 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 46 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 47 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 48 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 49 */ 50 51 /*- 52 * Copyright (c) 1997, 1998, 1999, 2000-2003 53 * Bill Paul <wpaul@windriver.com>. All rights reserved. 54 * 55 * Redistribution and use in source and binary forms, with or without 56 * modification, are permitted provided that the following conditions 57 * are met: 58 * 1. Redistributions of source code must retain the above copyright 59 * notice, this list of conditions and the following disclaimer. 60 * 2. Redistributions in binary form must reproduce the above copyright 61 * notice, this list of conditions and the following disclaimer in the 62 * documentation and/or other materials provided with the distribution. 63 * 3. All advertising materials mentioning features or use of this software 64 * must display the following acknowledgement: 65 * This product includes software developed by Bill Paul. 66 * 4. Neither the name of the author nor the names of any co-contributors 67 * may be used to endorse or promote products derived from this software 68 * without specific prior written permission. 69 * 70 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 71 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 72 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 73 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 74 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 75 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 76 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 77 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 78 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 79 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 80 * THE POSSIBILITY OF SUCH DAMAGE. 81 */ 82 83 #include <sys/cdefs.h> 84 __FBSDID("$FreeBSD$"); 85 86 /* 87 * Moschip MCS7730/MCS7830/MCS7832 USB to Ethernet controller 88 * The datasheet is available at the following URL: 89 * http://www.moschip.com/data/products/MCS7830/Data%20Sheet_7830.pdf 90 */ 91 92 /* 93 * The FreeBSD if_mos.c driver is based on various different sources: 94 * The vendor provided driver at the following URL: 95 * http://www.moschip.com/data/products/MCS7830/Driver_FreeBSD_7830.tar.gz 96 * 97 * Mixed together with the OpenBSD if_mos.c driver for validation and checking 98 * and the FreeBSD if_reu.c as reference for the USB Ethernet framework. 99 */ 100 101 #include <sys/stdint.h> 102 #include <sys/stddef.h> 103 #include <sys/param.h> 104 #include <sys/queue.h> 105 #include <sys/types.h> 106 #include <sys/systm.h> 107 #include <sys/socket.h> 108 #include <sys/kernel.h> 109 #include <sys/bus.h> 110 #include <sys/module.h> 111 #include <sys/lock.h> 112 #include <sys/mutex.h> 113 #include <sys/condvar.h> 114 #include <sys/sysctl.h> 115 #include <sys/sx.h> 116 #include <sys/unistd.h> 117 #include <sys/callout.h> 118 #include <sys/malloc.h> 119 #include <sys/priv.h> 120 121 #include <net/if.h> 122 #include <net/if_var.h> 123 #include <net/if_media.h> 124 125 #include <dev/mii/mii.h> 126 #include <dev/mii/miivar.h> 127 128 #include <dev/usb/usb.h> 129 #include <dev/usb/usbdi.h> 130 #include <dev/usb/usbdi_util.h> 131 #include "usbdevs.h" 132 133 #define USB_DEBUG_VAR mos_debug 134 #include <dev/usb/usb_debug.h> 135 #include <dev/usb/usb_process.h> 136 137 #include <dev/usb/net/usb_ethernet.h> 138 139 #include "miibus_if.h" 140 141 //#include <dev/usb/net/if_mosreg.h> 142 #include "if_mosreg.h" 143 144 #ifdef USB_DEBUG 145 static int mos_debug = 0; 146 147 static SYSCTL_NODE(_hw_usb, OID_AUTO, mos, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 148 "USB mos"); 149 SYSCTL_INT(_hw_usb_mos, OID_AUTO, debug, CTLFLAG_RWTUN, &mos_debug, 0, 150 "Debug level"); 151 #endif 152 153 #define MOS_DPRINTFN(fmt,...) \ 154 DPRINTF("mos: %s: " fmt "\n",__FUNCTION__,## __VA_ARGS__) 155 156 #define USB_PRODUCT_MOSCHIP_MCS7730 0x7730 157 #define USB_PRODUCT_SITECOMEU_LN030 0x0021 158 159 /* Various supported device vendors/products. */ 160 static const STRUCT_USB_HOST_ID mos_devs[] = { 161 {USB_VPI(USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7730, MCS7730)}, 162 {USB_VPI(USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7830, MCS7830)}, 163 {USB_VPI(USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7832, MCS7832)}, 164 {USB_VPI(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_LN030, MCS7830)}, 165 }; 166 167 static int mos_probe(device_t dev); 168 static int mos_attach(device_t dev); 169 static void mos_attach_post(struct usb_ether *ue); 170 static int mos_detach(device_t dev); 171 172 static void mos_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error); 173 static void mos_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error); 174 static void mos_intr_callback(struct usb_xfer *xfer, usb_error_t error); 175 static void mos_tick(struct usb_ether *); 176 static void mos_start(struct usb_ether *); 177 static void mos_init(struct usb_ether *); 178 static void mos_chip_init(struct mos_softc *); 179 static void mos_stop(struct usb_ether *); 180 static int mos_miibus_readreg(device_t, int, int); 181 static int mos_miibus_writereg(device_t, int, int, int); 182 static void mos_miibus_statchg(device_t); 183 static int mos_ifmedia_upd(struct ifnet *); 184 static void mos_ifmedia_sts(struct ifnet *, struct ifmediareq *); 185 static void mos_reset(struct mos_softc *sc); 186 187 static int mos_reg_read_1(struct mos_softc *, int); 188 static int mos_reg_read_2(struct mos_softc *, int); 189 static int mos_reg_write_1(struct mos_softc *, int, int); 190 static int mos_reg_write_2(struct mos_softc *, int, int); 191 static int mos_readmac(struct mos_softc *, uint8_t *); 192 static int mos_writemac(struct mos_softc *, uint8_t *); 193 static int mos_write_mcast(struct mos_softc *, u_char *); 194 195 static void mos_setmulti(struct usb_ether *); 196 static void mos_setpromisc(struct usb_ether *); 197 198 static const struct usb_config mos_config[MOS_ENDPT_MAX] = { 199 [MOS_ENDPT_TX] = { 200 .type = UE_BULK, 201 .endpoint = UE_ADDR_ANY, 202 .direction = UE_DIR_OUT, 203 .bufsize = (MCLBYTES + 2), 204 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 205 .callback = mos_bulk_write_callback, 206 .timeout = 10000, 207 }, 208 209 [MOS_ENDPT_RX] = { 210 .type = UE_BULK, 211 .endpoint = UE_ADDR_ANY, 212 .direction = UE_DIR_IN, 213 .bufsize = (MCLBYTES + 4 + ETHER_CRC_LEN), 214 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 215 .callback = mos_bulk_read_callback, 216 }, 217 218 [MOS_ENDPT_INTR] = { 219 .type = UE_INTERRUPT, 220 .endpoint = UE_ADDR_ANY, 221 .direction = UE_DIR_IN, 222 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 223 .bufsize = 0, 224 .callback = mos_intr_callback, 225 }, 226 }; 227 228 static device_method_t mos_methods[] = { 229 /* Device interface */ 230 DEVMETHOD(device_probe, mos_probe), 231 DEVMETHOD(device_attach, mos_attach), 232 DEVMETHOD(device_detach, mos_detach), 233 234 /* MII interface */ 235 DEVMETHOD(miibus_readreg, mos_miibus_readreg), 236 DEVMETHOD(miibus_writereg, mos_miibus_writereg), 237 DEVMETHOD(miibus_statchg, mos_miibus_statchg), 238 239 DEVMETHOD_END 240 }; 241 242 static driver_t mos_driver = { 243 .name = "mos", 244 .methods = mos_methods, 245 .size = sizeof(struct mos_softc) 246 }; 247 248 static devclass_t mos_devclass; 249 250 DRIVER_MODULE(mos, uhub, mos_driver, mos_devclass, NULL, 0); 251 DRIVER_MODULE(miibus, mos, miibus_driver, miibus_devclass, 0, 0); 252 MODULE_DEPEND(mos, uether, 1, 1, 1); 253 MODULE_DEPEND(mos, usb, 1, 1, 1); 254 MODULE_DEPEND(mos, ether, 1, 1, 1); 255 MODULE_DEPEND(mos, miibus, 1, 1, 1); 256 USB_PNP_HOST_INFO(mos_devs); 257 258 static const struct usb_ether_methods mos_ue_methods = { 259 .ue_attach_post = mos_attach_post, 260 .ue_start = mos_start, 261 .ue_init = mos_init, 262 .ue_stop = mos_stop, 263 .ue_tick = mos_tick, 264 .ue_setmulti = mos_setmulti, 265 .ue_setpromisc = mos_setpromisc, 266 .ue_mii_upd = mos_ifmedia_upd, 267 .ue_mii_sts = mos_ifmedia_sts, 268 }; 269 270 static int 271 mos_reg_read_1(struct mos_softc *sc, int reg) 272 { 273 struct usb_device_request req; 274 usb_error_t err; 275 uByte val = 0; 276 277 req.bmRequestType = UT_READ_VENDOR_DEVICE; 278 req.bRequest = MOS_UR_READREG; 279 USETW(req.wValue, 0); 280 USETW(req.wIndex, reg); 281 USETW(req.wLength, 1); 282 283 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 284 285 if (err) { 286 MOS_DPRINTFN("mos_reg_read_1 error, reg: %d\n", reg); 287 return (-1); 288 } 289 return (val); 290 } 291 292 static int 293 mos_reg_read_2(struct mos_softc *sc, int reg) 294 { 295 struct usb_device_request req; 296 usb_error_t err; 297 uWord val; 298 299 USETW(val, 0); 300 301 req.bmRequestType = UT_READ_VENDOR_DEVICE; 302 req.bRequest = MOS_UR_READREG; 303 USETW(req.wValue, 0); 304 USETW(req.wIndex, reg); 305 USETW(req.wLength, 2); 306 307 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 308 309 if (err) { 310 MOS_DPRINTFN("mos_reg_read_2 error, reg: %d", reg); 311 return (-1); 312 } 313 return (UGETW(val)); 314 } 315 316 static int 317 mos_reg_write_1(struct mos_softc *sc, int reg, int aval) 318 { 319 struct usb_device_request req; 320 usb_error_t err; 321 uByte val; 322 val = aval; 323 324 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 325 req.bRequest = MOS_UR_WRITEREG; 326 USETW(req.wValue, 0); 327 USETW(req.wIndex, reg); 328 USETW(req.wLength, 1); 329 330 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 331 332 if (err) { 333 MOS_DPRINTFN("mos_reg_write_1 error, reg: %d", reg); 334 return (-1); 335 } 336 return (0); 337 } 338 339 static int 340 mos_reg_write_2(struct mos_softc *sc, int reg, int aval) 341 { 342 struct usb_device_request req; 343 usb_error_t err; 344 uWord val; 345 346 USETW(val, aval); 347 348 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 349 req.bRequest = MOS_UR_WRITEREG; 350 USETW(req.wValue, 0); 351 USETW(req.wIndex, reg); 352 USETW(req.wLength, 2); 353 354 err = uether_do_request(&sc->sc_ue, &req, &val, 1000); 355 356 if (err) { 357 MOS_DPRINTFN("mos_reg_write_2 error, reg: %d", reg); 358 return (-1); 359 } 360 return (0); 361 } 362 363 static int 364 mos_readmac(struct mos_softc *sc, u_char *mac) 365 { 366 struct usb_device_request req; 367 usb_error_t err; 368 369 req.bmRequestType = UT_READ_VENDOR_DEVICE; 370 req.bRequest = MOS_UR_READREG; 371 USETW(req.wValue, 0); 372 USETW(req.wIndex, MOS_MAC); 373 USETW(req.wLength, ETHER_ADDR_LEN); 374 375 err = uether_do_request(&sc->sc_ue, &req, mac, 1000); 376 377 if (err) { 378 return (-1); 379 } 380 return (0); 381 } 382 383 static int 384 mos_writemac(struct mos_softc *sc, uint8_t *mac) 385 { 386 struct usb_device_request req; 387 usb_error_t err; 388 389 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 390 req.bRequest = MOS_UR_WRITEREG; 391 USETW(req.wValue, 0); 392 USETW(req.wIndex, MOS_MAC); 393 USETW(req.wLength, ETHER_ADDR_LEN); 394 395 err = uether_do_request(&sc->sc_ue, &req, mac, 1000); 396 397 if (err) { 398 MOS_DPRINTFN("mos_writemac error"); 399 return (-1); 400 } 401 return (0); 402 } 403 404 static int 405 mos_write_mcast(struct mos_softc *sc, u_char *hashtbl) 406 { 407 struct usb_device_request req; 408 usb_error_t err; 409 410 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 411 req.bRequest = MOS_UR_WRITEREG; 412 USETW(req.wValue, 0); 413 USETW(req.wIndex, MOS_MCAST_TABLE); 414 USETW(req.wLength, 8); 415 416 err = uether_do_request(&sc->sc_ue, &req, hashtbl, 1000); 417 418 if (err) { 419 MOS_DPRINTFN("mos_reg_mcast error"); 420 return (-1); 421 } 422 return (0); 423 } 424 425 static int 426 mos_miibus_readreg(device_t dev, int phy, int reg) 427 { 428 struct mos_softc *sc = device_get_softc(dev); 429 uWord val; 430 int i, res, locked; 431 432 USETW(val, 0); 433 434 locked = mtx_owned(&sc->sc_mtx); 435 if (!locked) 436 MOS_LOCK(sc); 437 438 mos_reg_write_2(sc, MOS_PHY_DATA, 0); 439 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | 440 MOS_PHYCTL_READ); 441 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | 442 MOS_PHYSTS_PENDING); 443 444 for (i = 0; i < MOS_TIMEOUT; i++) { 445 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) 446 break; 447 } 448 if (i == MOS_TIMEOUT) { 449 MOS_DPRINTFN("MII read timeout"); 450 } 451 res = mos_reg_read_2(sc, MOS_PHY_DATA); 452 453 if (!locked) 454 MOS_UNLOCK(sc); 455 return (res); 456 } 457 458 static int 459 mos_miibus_writereg(device_t dev, int phy, int reg, int val) 460 { 461 struct mos_softc *sc = device_get_softc(dev); 462 int i, locked; 463 464 locked = mtx_owned(&sc->sc_mtx); 465 if (!locked) 466 MOS_LOCK(sc); 467 468 mos_reg_write_2(sc, MOS_PHY_DATA, val); 469 mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | 470 MOS_PHYCTL_WRITE); 471 mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | 472 MOS_PHYSTS_PENDING); 473 474 for (i = 0; i < MOS_TIMEOUT; i++) { 475 if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) 476 break; 477 } 478 if (i == MOS_TIMEOUT) 479 MOS_DPRINTFN("MII write timeout"); 480 481 if (!locked) 482 MOS_UNLOCK(sc); 483 return 0; 484 } 485 486 static void 487 mos_miibus_statchg(device_t dev) 488 { 489 struct mos_softc *sc = device_get_softc(dev); 490 struct mii_data *mii = GET_MII(sc); 491 int val, err, locked; 492 493 locked = mtx_owned(&sc->sc_mtx); 494 if (!locked) 495 MOS_LOCK(sc); 496 497 /* disable RX, TX prior to changing FDX, SPEEDSEL */ 498 val = mos_reg_read_1(sc, MOS_CTL); 499 val &= ~(MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); 500 mos_reg_write_1(sc, MOS_CTL, val); 501 502 /* reset register which counts dropped frames */ 503 mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0); 504 505 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 506 val |= MOS_CTL_FDX_ENB; 507 else 508 val &= ~(MOS_CTL_FDX_ENB); 509 510 switch (IFM_SUBTYPE(mii->mii_media_active)) { 511 case IFM_100_TX: 512 val |= MOS_CTL_SPEEDSEL; 513 break; 514 case IFM_10_T: 515 val &= ~(MOS_CTL_SPEEDSEL); 516 break; 517 } 518 519 /* re-enable TX, RX */ 520 val |= (MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); 521 err = mos_reg_write_1(sc, MOS_CTL, val); 522 523 if (err) 524 MOS_DPRINTFN("media change failed"); 525 526 if (!locked) 527 MOS_UNLOCK(sc); 528 } 529 530 /* 531 * Set media options. 532 */ 533 static int 534 mos_ifmedia_upd(struct ifnet *ifp) 535 { 536 struct mos_softc *sc = ifp->if_softc; 537 struct mii_data *mii = GET_MII(sc); 538 struct mii_softc *miisc; 539 int error; 540 541 MOS_LOCK_ASSERT(sc, MA_OWNED); 542 543 sc->mos_link = 0; 544 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 545 PHY_RESET(miisc); 546 error = mii_mediachg(mii); 547 return (error); 548 } 549 550 /* 551 * Report current media status. 552 */ 553 static void 554 mos_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 555 { 556 struct mos_softc *sc = ifp->if_softc; 557 struct mii_data *mii = GET_MII(sc); 558 559 MOS_LOCK(sc); 560 mii_pollstat(mii); 561 562 ifmr->ifm_active = mii->mii_media_active; 563 ifmr->ifm_status = mii->mii_media_status; 564 MOS_UNLOCK(sc); 565 } 566 567 static void 568 mos_setpromisc(struct usb_ether *ue) 569 { 570 struct mos_softc *sc = uether_getsc(ue); 571 struct ifnet *ifp = uether_getifp(ue); 572 573 uint8_t rxmode; 574 575 MOS_LOCK_ASSERT(sc, MA_OWNED); 576 577 rxmode = mos_reg_read_1(sc, MOS_CTL); 578 579 /* If we want promiscuous mode, set the allframes bit. */ 580 if (ifp->if_flags & IFF_PROMISC) { 581 rxmode |= MOS_CTL_RX_PROMISC; 582 } else { 583 rxmode &= ~MOS_CTL_RX_PROMISC; 584 } 585 586 mos_reg_write_1(sc, MOS_CTL, rxmode); 587 } 588 589 static u_int 590 mos_hash_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt) 591 { 592 uint8_t *hashtbl = arg; 593 uint32_t h; 594 595 h = ether_crc32_be(LLADDR(sdl), ETHER_ADDR_LEN) >> 26; 596 hashtbl[h / 8] |= 1 << (h % 8); 597 598 return (1); 599 } 600 601 static void 602 mos_setmulti(struct usb_ether *ue) 603 { 604 struct mos_softc *sc = uether_getsc(ue); 605 struct ifnet *ifp = uether_getifp(ue); 606 uint8_t rxmode; 607 uint8_t hashtbl[8] = {0, 0, 0, 0, 0, 0, 0, 0}; 608 int allmulti = 0; 609 610 MOS_LOCK_ASSERT(sc, MA_OWNED); 611 612 rxmode = mos_reg_read_1(sc, MOS_CTL); 613 614 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) 615 allmulti = 1; 616 617 /* get all new ones */ 618 if_foreach_llmaddr(ifp, mos_hash_maddr, &hashtbl); 619 620 /* now program new ones */ 621 if (allmulti == 1) { 622 rxmode |= MOS_CTL_ALLMULTI; 623 mos_reg_write_1(sc, MOS_CTL, rxmode); 624 } else { 625 rxmode &= ~MOS_CTL_ALLMULTI; 626 mos_write_mcast(sc, (void *)&hashtbl); 627 mos_reg_write_1(sc, MOS_CTL, rxmode); 628 } 629 } 630 631 static void 632 mos_reset(struct mos_softc *sc) 633 { 634 uint8_t ctl; 635 636 ctl = mos_reg_read_1(sc, MOS_CTL); 637 ctl &= ~(MOS_CTL_RX_PROMISC | MOS_CTL_ALLMULTI | MOS_CTL_TX_ENB | 638 MOS_CTL_RX_ENB); 639 /* Disable RX, TX, promiscuous and allmulticast mode */ 640 mos_reg_write_1(sc, MOS_CTL, ctl); 641 642 /* Reset frame drop counter register to zero */ 643 mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0); 644 645 /* Wait a little while for the chip to get its brains in order. */ 646 usb_pause_mtx(&sc->sc_mtx, hz / 128); 647 return; 648 } 649 650 static void 651 mos_chip_init(struct mos_softc *sc) 652 { 653 int i; 654 655 /* 656 * Rev.C devices have a pause threshold register which needs to be set 657 * at startup. 658 */ 659 if (mos_reg_read_1(sc, MOS_PAUSE_TRHD) != -1) { 660 for (i = 0; i < MOS_PAUSE_REWRITES; i++) 661 mos_reg_write_1(sc, MOS_PAUSE_TRHD, 0); 662 } 663 sc->mos_phyaddrs[0] = 1; 664 sc->mos_phyaddrs[1] = 0xFF; 665 } 666 667 /* 668 * Probe for a MCS7x30 chip. 669 */ 670 static int 671 mos_probe(device_t dev) 672 { 673 struct usb_attach_arg *uaa = device_get_ivars(dev); 674 int retval; 675 676 if (uaa->usb_mode != USB_MODE_HOST) 677 return (ENXIO); 678 if (uaa->info.bConfigIndex != MOS_CONFIG_IDX) 679 return (ENXIO); 680 if (uaa->info.bIfaceIndex != MOS_IFACE_IDX) 681 return (ENXIO); 682 683 retval = usbd_lookup_id_by_uaa(mos_devs, sizeof(mos_devs), uaa); 684 return (retval); 685 } 686 687 /* 688 * Attach the interface. Allocate softc structures, do ifmedia 689 * setup and ethernet/BPF attach. 690 */ 691 static int 692 mos_attach(device_t dev) 693 { 694 struct usb_attach_arg *uaa = device_get_ivars(dev); 695 struct mos_softc *sc = device_get_softc(dev); 696 struct usb_ether *ue = &sc->sc_ue; 697 uint8_t iface_index; 698 int error; 699 700 sc->mos_flags = USB_GET_DRIVER_INFO(uaa); 701 702 device_set_usb_desc(dev); 703 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 704 705 iface_index = MOS_IFACE_IDX; 706 error = usbd_transfer_setup(uaa->device, &iface_index, 707 sc->sc_xfer, mos_config, MOS_ENDPT_MAX, 708 sc, &sc->sc_mtx); 709 710 if (error) { 711 device_printf(dev, "allocating USB transfers failed\n"); 712 goto detach; 713 } 714 ue->ue_sc = sc; 715 ue->ue_dev = dev; 716 ue->ue_udev = uaa->device; 717 ue->ue_mtx = &sc->sc_mtx; 718 ue->ue_methods = &mos_ue_methods; 719 720 if (sc->mos_flags & MCS7730) { 721 MOS_DPRINTFN("model: MCS7730"); 722 } else if (sc->mos_flags & MCS7830) { 723 MOS_DPRINTFN("model: MCS7830"); 724 } else if (sc->mos_flags & MCS7832) { 725 MOS_DPRINTFN("model: MCS7832"); 726 } 727 error = uether_ifattach(ue); 728 if (error) { 729 device_printf(dev, "could not attach interface\n"); 730 goto detach; 731 } 732 return (0); 733 734 detach: 735 mos_detach(dev); 736 return (ENXIO); 737 } 738 739 static void 740 mos_attach_post(struct usb_ether *ue) 741 { 742 struct mos_softc *sc = uether_getsc(ue); 743 int err; 744 745 /* Read MAC address, inform the world. */ 746 err = mos_readmac(sc, ue->ue_eaddr); 747 748 if (err) 749 MOS_DPRINTFN("couldn't get MAC address"); 750 751 MOS_DPRINTFN("address: %s", ether_sprintf(ue->ue_eaddr)); 752 753 mos_chip_init(sc); 754 } 755 756 static int 757 mos_detach(device_t dev) 758 { 759 struct mos_softc *sc = device_get_softc(dev); 760 struct usb_ether *ue = &sc->sc_ue; 761 762 usbd_transfer_unsetup(sc->sc_xfer, MOS_ENDPT_MAX); 763 uether_ifdetach(ue); 764 mtx_destroy(&sc->sc_mtx); 765 766 return (0); 767 } 768 769 /* 770 * A frame has been uploaded: pass the resulting mbuf chain up to 771 * the higher level protocols. 772 */ 773 static void 774 mos_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 775 { 776 struct mos_softc *sc = usbd_xfer_softc(xfer); 777 struct usb_ether *ue = &sc->sc_ue; 778 struct ifnet *ifp = uether_getifp(ue); 779 780 uint8_t rxstat = 0; 781 uint32_t actlen; 782 uint16_t pktlen = 0; 783 struct usb_page_cache *pc; 784 785 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 786 pc = usbd_xfer_get_frame(xfer, 0); 787 788 switch (USB_GET_STATE(xfer)) { 789 case USB_ST_TRANSFERRED: 790 MOS_DPRINTFN("actlen : %d", actlen); 791 if (actlen <= 1) { 792 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 793 goto tr_setup; 794 } 795 /* evaluate status byte at the end */ 796 usbd_copy_out(pc, actlen - sizeof(rxstat), &rxstat, 797 sizeof(rxstat)); 798 799 if (rxstat != MOS_RXSTS_VALID) { 800 MOS_DPRINTFN("erroneous frame received"); 801 if (rxstat & MOS_RXSTS_SHORT_FRAME) 802 MOS_DPRINTFN("frame size less than 64 bytes"); 803 if (rxstat & MOS_RXSTS_LARGE_FRAME) { 804 MOS_DPRINTFN("frame size larger than " 805 "1532 bytes"); 806 } 807 if (rxstat & MOS_RXSTS_CRC_ERROR) 808 MOS_DPRINTFN("CRC error"); 809 if (rxstat & MOS_RXSTS_ALIGN_ERROR) 810 MOS_DPRINTFN("alignment error"); 811 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 812 goto tr_setup; 813 } 814 /* Remember the last byte was used for the status fields */ 815 pktlen = actlen - 1; 816 if (pktlen < sizeof(struct ether_header)) { 817 MOS_DPRINTFN("error: pktlen %d is smaller " 818 "than ether_header %zd", pktlen, 819 sizeof(struct ether_header)); 820 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 821 goto tr_setup; 822 } 823 uether_rxbuf(ue, pc, 0, actlen); 824 /* FALLTHROUGH */ 825 case USB_ST_SETUP: 826 tr_setup: 827 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 828 usbd_transfer_submit(xfer); 829 uether_rxflush(ue); 830 return; 831 default: 832 MOS_DPRINTFN("bulk read error, %s", usbd_errstr(error)); 833 if (error != USB_ERR_CANCELLED) { 834 usbd_xfer_set_stall(xfer); 835 goto tr_setup; 836 } 837 MOS_DPRINTFN("start rx %i", usbd_xfer_max_len(xfer)); 838 return; 839 } 840 } 841 842 /* 843 * A frame was downloaded to the chip. It's safe for us to clean up 844 * the list buffers. 845 */ 846 static void 847 mos_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 848 { 849 struct mos_softc *sc = usbd_xfer_softc(xfer); 850 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 851 struct usb_page_cache *pc; 852 struct mbuf *m; 853 854 switch (USB_GET_STATE(xfer)) { 855 case USB_ST_TRANSFERRED: 856 MOS_DPRINTFN("transfer of complete"); 857 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 858 /* FALLTHROUGH */ 859 case USB_ST_SETUP: 860 tr_setup: 861 /* 862 * XXX: don't send anything if there is no link? 863 */ 864 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 865 if (m == NULL) 866 return; 867 868 pc = usbd_xfer_get_frame(xfer, 0); 869 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len); 870 871 usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len); 872 873 /* 874 * if there's a BPF listener, bounce a copy 875 * of this frame to him: 876 */ 877 BPF_MTAP(ifp, m); 878 879 m_freem(m); 880 881 usbd_transfer_submit(xfer); 882 883 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 884 return; 885 default: 886 MOS_DPRINTFN("usb error on tx: %s\n", usbd_errstr(error)); 887 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 888 if (error != USB_ERR_CANCELLED) { 889 usbd_xfer_set_stall(xfer); 890 goto tr_setup; 891 } 892 return; 893 } 894 } 895 896 static void 897 mos_tick(struct usb_ether *ue) 898 { 899 struct mos_softc *sc = uether_getsc(ue); 900 struct mii_data *mii = GET_MII(sc); 901 902 MOS_LOCK_ASSERT(sc, MA_OWNED); 903 904 mii_tick(mii); 905 if (!sc->mos_link && mii->mii_media_status & IFM_ACTIVE && 906 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 907 MOS_DPRINTFN("got link"); 908 sc->mos_link++; 909 mos_start(ue); 910 } 911 } 912 913 static void 914 mos_start(struct usb_ether *ue) 915 { 916 struct mos_softc *sc = uether_getsc(ue); 917 918 /* 919 * start the USB transfers, if not already started: 920 */ 921 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_TX]); 922 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_RX]); 923 usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_INTR]); 924 } 925 926 static void 927 mos_init(struct usb_ether *ue) 928 { 929 struct mos_softc *sc = uether_getsc(ue); 930 struct ifnet *ifp = uether_getifp(ue); 931 uint8_t rxmode; 932 933 MOS_LOCK_ASSERT(sc, MA_OWNED); 934 935 /* Cancel pending I/O and free all RX/TX buffers. */ 936 mos_reset(sc); 937 938 /* Write MAC address */ 939 mos_writemac(sc, IF_LLADDR(ifp)); 940 941 /* Read and set transmitter IPG values */ 942 sc->mos_ipgs[0] = mos_reg_read_1(sc, MOS_IPG0); 943 sc->mos_ipgs[1] = mos_reg_read_1(sc, MOS_IPG1); 944 mos_reg_write_1(sc, MOS_IPG0, sc->mos_ipgs[0]); 945 mos_reg_write_1(sc, MOS_IPG1, sc->mos_ipgs[1]); 946 947 /* 948 * Enable receiver and transmitter, bridge controls speed/duplex 949 * mode 950 */ 951 rxmode = mos_reg_read_1(sc, MOS_CTL); 952 rxmode |= MOS_CTL_RX_ENB | MOS_CTL_TX_ENB | MOS_CTL_BS_ENB; 953 rxmode &= ~(MOS_CTL_SLEEP); 954 955 mos_setpromisc(ue); 956 957 /* XXX: broadcast mode? */ 958 mos_reg_write_1(sc, MOS_CTL, rxmode); 959 960 /* Load the multicast filter. */ 961 mos_setmulti(ue); 962 963 ifp->if_drv_flags |= IFF_DRV_RUNNING; 964 mos_start(ue); 965 } 966 967 static void 968 mos_intr_callback(struct usb_xfer *xfer, usb_error_t error) 969 { 970 struct mos_softc *sc = usbd_xfer_softc(xfer); 971 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 972 struct usb_page_cache *pc; 973 uint32_t pkt; 974 int actlen; 975 976 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 977 978 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 979 MOS_DPRINTFN("actlen %i", actlen); 980 981 switch (USB_GET_STATE(xfer)) { 982 case USB_ST_TRANSFERRED: 983 984 pc = usbd_xfer_get_frame(xfer, 0); 985 usbd_copy_out(pc, 0, &pkt, sizeof(pkt)); 986 /* FALLTHROUGH */ 987 case USB_ST_SETUP: 988 tr_setup: 989 return; 990 default: 991 if (error != USB_ERR_CANCELLED) { 992 usbd_xfer_set_stall(xfer); 993 goto tr_setup; 994 } 995 return; 996 } 997 } 998 999 /* 1000 * Stop the adapter and free any mbufs allocated to the 1001 * RX and TX lists. 1002 */ 1003 static void 1004 mos_stop(struct usb_ether *ue) 1005 { 1006 struct mos_softc *sc = uether_getsc(ue); 1007 struct ifnet *ifp = uether_getifp(ue); 1008 1009 mos_reset(sc); 1010 1011 MOS_LOCK_ASSERT(sc, MA_OWNED); 1012 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 1013 1014 /* stop all the transfers, if not already stopped */ 1015 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_TX]); 1016 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_RX]); 1017 usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_INTR]); 1018 1019 sc->mos_link = 0; 1020 } 1021